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Apple Land Activity
Transcript of Apple Land Activity
Use an apple and a knife to complete the following steps and discover how much usable farmland we have on earth.
What you have left is now suitable for growing crops.
But... agriculture only takes place on the surface of the earth in a topsoil layer approximately 1 m thick.
Carefully slice off the peel of the piece you have left.
DESERTS, MOUNTAINS, POLAR REGIONS
THIS IS IT!
3/4 of the earth is water.
1/4 of the earth is land.
1/2 of all land is not suitable for humans to live.
This land includes deserts, mountains, and polar regions.
3/4 of all habitable land is not suitable for agriculture.
This land is used for cities/urban places, highways, or has poor soil/climate.
THE BIG PICTURE
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